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Update tree bfs challenge (#127)

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Switch from Exception to TypeError
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Donne Martin
2016-12-01 06:29:08 -05:00
committed by GitHub
parent a88f0a0b0b
commit 385bc54efa
1 changed files with 1 additions and 1 deletions
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graphs_trees/tree_bfs/bfs_solution.ipynb
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@@ -101,7 +101,7 @@
"\n", "\n",
" def bfs(self, visit_func):\n", " def bfs(self, visit_func):\n",
" if self.root is None:\n", " if self.root is None:\n",
" raise Exception('root is None')\n", " raise TypeError('root is None')\n",
" queue = deque()\n", " queue = deque()\n",
" queue.append(self.root)\n", " queue.append(self.root)\n",
" while queue:\n", " while queue:\n",